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   <div id="projectbrief">Measure algorithm execution time and report to grafs</div>
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<div class="title">AbortableBackgroundWorker.cs</div>  </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;﻿using System.ComponentModel;</div>
<div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="keyword">using</span> System.Threading;</div>
<div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;</div>
<div class="line"><a name="l00004"></a><span class="lineno"><a class="code" href="namespaceeda12131190311906.html">    4</a></span>&#160;<span class="keyword">namespace </span>eda12131190311906</div>
<div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;{</div>
<div class="line"><a name="l00010"></a><span class="lineno"><a class="code" href="classeda12131190311906_1_1_abortable_background_worker.html">   10</a></span>&#160;    <span class="keyword">class </span><a class="code" href="classeda12131190311906_1_1_abortable_background_worker.html" title="Executes an operation on a separate thread. Can be aborted without a wait time ">AbortableBackgroundWorker</a> : BackgroundWorker </div>
<div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;    {</div>
<div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;        <span class="keyword">private</span> Thread _workerThread;</div>
<div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;</div>
<div class="line"><a name="l00020"></a><span class="lineno"><a class="code" href="classeda12131190311906_1_1_abortable_background_worker.html#acae1ad4bcba432902a50e8a6753e6596">   20</a></span>&#160;        <span class="keyword">protected</span> <span class="keyword">override</span> <span class="keywordtype">void</span> <a class="code" href="classeda12131190311906_1_1_abortable_background_worker.html#acae1ad4bcba432902a50e8a6753e6596" title="Occurs when M:System.ComponentModel.BackgroundWorker.RunWorkerAsync is called. ">OnDoWork</a>(DoWorkEventArgs e)</div>
<div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;        {</div>
<div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;            _workerThread = Thread.CurrentThread;</div>
<div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;            <span class="keywordflow">try</span></div>
<div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;            {</div>
<div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;                base.OnDoWork(e);</div>
<div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;            }</div>
<div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;            <span class="keywordflow">catch</span> (ThreadAbortException)</div>
<div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;            {</div>
<div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;                e.Cancel = <span class="keyword">true</span>; <span class="comment">//We must set Cancel property to true!</span></div>
<div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;                Thread.ResetAbort(); <span class="comment">//Prevents ThreadAbortException propagation</span></div>
<div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;            }</div>
<div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;        }</div>
<div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;</div>
<div class="line"><a name="l00037"></a><span class="lineno"><a class="code" href="classeda12131190311906_1_1_abortable_background_worker.html#ab03b98704aa63ff01d35b2a76556c473">   37</a></span>&#160;        <span class="keyword">public</span> <span class="keywordtype">void</span> <a class="code" href="classeda12131190311906_1_1_abortable_background_worker.html#ab03b98704aa63ff01d35b2a76556c473" title="Abort operation immediately ">Abort</a>()</div>
<div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;        {</div>
<div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;            <span class="keywordflow">if</span> (_workerThread == null) <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;            _workerThread.Abort();</div>
<div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;            _workerThread = null;</div>
<div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;        }</div>
<div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;</div>
<div class="line"><a name="l00047"></a><span class="lineno"><a class="code" href="classeda12131190311906_1_1_abortable_background_worker.html#a5985540b57809639ad7830194afca70b">   47</a></span>&#160;        <span class="keyword">public</span> <span class="keywordtype">void</span> <a class="code" href="classeda12131190311906_1_1_abortable_background_worker.html#a5985540b57809639ad7830194afca70b" title="Abort operation immediately and try to cancel first ">AbortCancel</a>()</div>
<div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;        {</div>
<div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;            <span class="keywordflow">if</span> (WorkerSupportsCancellation &amp;&amp; !CancellationPending)</div>
<div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;            {</div>
<div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;                CancelAsync();</div>
<div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;            }</div>
<div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;            <a class="code" href="classeda12131190311906_1_1_abortable_background_worker.html#ab03b98704aa63ff01d35b2a76556c473" title="Abort operation immediately ">Abort</a>();</div>
<div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;        }</div>
<div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;    }</div>
<div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;}</div>
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